ITEM NAME:M3 x 0.5mm 304 Stainless Steel Nylock Nylon Insert Hex Lock Nuts 50pcs O5O1 M3 x 0.5mm 304 Stainless Steel Nylock Nylon Insert Hex Lock Nuts 50pcs O5O1 Product Name: Nylon Lock Nut; Weight: 23g; colour: Silver Material: 304 Stainless Steel size: M3x0.5mm Height: 4mm/0.16 inch Width Across Flats: 6mm/0.24 inch Package Contents: 50 x (+/-2%) x Nylon Lock Nuts Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Material: 304 Stainless Steel. 50 x (+/-2%) x Nylon Lock Nuts. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Weight: 23g;.